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Journal of Materials Science

, Volume 44, Issue 3, pp 816–820 | Cite as

Preparation of photostable quantum dot-polystyrene microbeads through covalent organosilane coupling of CdSe@Zns quantum dots

  • Qiangbin Wang
  • Dong-Kyun SeoEmail author
Article

Abstract

We report preparation of highly photoluminescent CdSe@ZnS quantum dot-polystyrene composite beads, by employing stepwisely: (1) a simultaneous ZnS shell formation and ligand exchange with 3-mercaptopropyltrimethoxy silane (MPS); (2) coupling MPS with polymerizable 3-(trimethoxysily)propylmethacrylate (MPM); and (3) polymerization of the resulting MPM–MPS capped CdSe@ZnS quantum dots with styrene molecules. The functionalized quantum dots exhibited robust chemical stability against the harsh radical polymerization condition and the resulting polymer microbeads were strong against photobleaching under an intense and continuous laser.

Keywords

Composite Bead CdSe Core Propylmethacrylate Intense Laser Beam Polymerizable Functional Group 

Notes

Acknowledgement

D.-K.·S. is grateful for financial support from the National Science Foundation through his CAREER Award (DMR Contract No. 0239837) and the Camille and Henry Dreyfus Foundation for his Camille Dreyfus Teacher-Scholar Award. The authors thank Dr. Douglas Daniel for his help in confocal microscopy studies.

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Suzhou Institute of Nano Tech and Nano Bionics, Chinese Academy of ScienceSuzhouP. R. China
  2. 2.Department of Chemistry and BiochemistryArizona State UniversityTempeUSA

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